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(No Model.)

J.,M. WHITING.

GAR'WHBEL. No. 282,593. Patented. Aug. '7, 1883.

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N PETERS. PllahvLilhngnphur. Washi nnnnnn C UNITED STATES PATENT FFICE.

JAMES M. \VHITING, OF PROVIDENCE, R. I., ASSIGNOR OF ONE-HALF TO JULIUS CARROLL AND GEORGE O. ELIOTT, OF SAME PLACE.

CAR-WHEEL.

SPECIFICATION forming part of Letters Patent No. 282,593, dated August '7, 18'83.

Application filed May 14, 1883. (N model.)

To all whom, it may concern:

Be it known that I, JAMES M. \VHITING, of the city and county of Providence, and State of Rhode Island, have invented a new and useful Improvement in Oar-W'heels; and I hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification.

This invention has reference to an improvement in wheels for railroad-cars; and it 0011- sists in the peculiar and novel construction by which the jar of the wheel is deadened and a limited amount of elasticity is secured in the wheel, as will be more fully set forth hereinafter.

Gar-wheels as heretofore constructed form either a rigid structure when made of cast metal, or when made of wroughtmetal require expensive machinery and costly labor.

The object of this invention is to construct car-wheels of cast metal and interpose a yielding material, so that the sudden shocks to which the wheels are exposed will be deadened and a slight yield given to the wheel, by which it will run smoothly and noiselessly.

Figure 1 is a view, partly in section, of my improved car-wheel. Fig. 2 is a view, partly in section, of a modification of my improved car-wheel. Fig. 3 is a sectional view of the same, showing the manner of securing the armed spider to the tire. Fig. 4 is a perspective view of the sectional blocks used in building up the car-wheel. In the drawings, Ais the armed spider, c011- sisting of the hub Band the spokesC O. The spokes O O are provided on each side with the projecting plates D, wider than the spokes, so that a recess is formed into whichthe blocks E E canbe placed; or one side of the spider A may consist'of the plate D, or, if desired,

both sides may be formed into solid plates, provided the plate on one side is made so that the tire can be placed over the same. The ends of the spokes are preferably rounded, as also in the intersection of the spokes with the hub, and on the sides of the spokes, as well as over the ends, the strip F of india-rubber, rawhide, prepared paper, or any other similar material is placed. The blocks E E are now inserted, bearing on the strip F along their sides as well as at the ends. These blocks are forced firmly into th e space between the spokes, so as to compress the interposed material F, and are held in place by a powerful chuck hearing against all the blocks. The tire G is now placed over the blocks E E, resting against the projecting ends (I of the plates D, or against the plate D, and will. thus firmly hold the parts together. One or more of the blocks E may now be secured by bolts or keys to the tire, and the wheel is completed; or the spider A may be made of malleable cast metal, and

the ends (I of the plates D on one side may be turned, as shown in Fig. 3, so as to pass through the tire, and maybe straightened out when the tire is secured, so as to firmly hold the same in place. The ends (1 may enterrecesses formed in the tire, in which they can have sufficient lateral play to prevent binding, so as not to injure the elasticity of the wheel; and one side of the plate D may also be providedwith such projections d d, by which the same is held in in place.

It will be observed that the broad surface the tapering sides rest against the elastic or semi-elastic material interposed between them and the spokes. Anyjar or sudden concussion will therefore be taken up by the interposed material, and will not be transmitted to the axle. A limited elasticity, due to the elasticity of theinterposed material, will be secured in the wheel, and it will therefore be more durable than the rigid cast-metal wheels hereto,- fore constructed, while all parts can be made of cast metal, although I prefer that a rolledsteel tire be used.

It is obvious to those skilled in the art that the parts may be secured together in various ways, and as I have pointed out some of these ways, I do not wish to confine myself to any particular manner of securing-the tire or the parts.

Light wheels for horse-cars may be con structed 011 this principle, by which the jar and hum of the prefint car-wheels is avoided and a noiseless car-wheel secured.

Having thus described my invention, I claim as new and desire to secure by Letters Patent-- 1. The combination, with the cast-metal spider A, of the separate cast metal blocks E, one between each two arms of thespider, the elastic material F, between the spider and blocks, and the tire G, which embraces and holds all the blocks E in position, substantially as described. a

2. The combination, withthe cast-metal spider A, of the separate cast-metal blocks E, one between each two arms of the spider, the elastic material F, the tire G, and the retaining.- a

plate D, all arranged and combined substantially as stated.

3. The combination, with spider-A, having spokes, as described, the separate blocks E, between said spokes, the interposed elastic ma terial, and the tire, all arranged as described, of the plates D, having ends d, of malleable iron, capable of being bent into position to secure the parts together, all substantially as 'de- 20 scribed.

JAMES M. HITING.

\Vit'nesses:

J. A. MILLER, J12, M. F. BLIGH. 

